- Q -

Queer, Fag, Faggot, Homo:
    Poof, Poofter, Queer, Queen, Nancy Boy

- R -

Racquetball:
    Squash
(Racquetball is virtually unheard of in England, and Squash is a near equivalent.)

Raincoat:
    Anorak, Mac 
(something dirty old men wear [mac] )

Railway Crossing:
    Level Crossing, Grade Crossing

Railway Tie:
    Sleeper

Rappeling:
    Abseiling

Realtor:
    Estate-Agent

Recess (school):
    Break

Record on Video:
    Video, Tape
('I'm going out Friday so I need to video Frasier & Friends')

Re-Modelling:
    Decorate, DIY (Do It Yourself) 
(Trudie to Craig: 'We need to decorate the hallway, kitchen and living room before Christmas!')

Rent:
    Hire

Rent-a-Car:
    Self-Drive, Car Hire

Rent (buildings):
    Let

Representative (i.e., Congressman, Senator):
    MP, Member of Parliament (rought equivalent)

Re-Run (TV):
    Repeat

Reservation:
    Book
("We'd better book a table at that fancy new restaurant for this Friday Jane")

Rest Area:
    Lay-By

Résumé:
    Curriculum Vitae (CV)

Ride (give someone a ride):
    Lift

Robe:
    Dressing Gown

Roll of Film, a:
    A Film 
('I have three films to get developed from my holiday')

Root Beer:
    Unheard of.
Coke, Pepsi, 7-Up & Fanta enjoy success in the UK and the rest of Europe, but not Root Beer.
'Yellow' drinks such as Mountain Dew, Mellow Yello & Slice haven't had success either. Mountain Dew was introduced by Pepsi a couple of years ago, but it didnt' take off.

Round-Trip Journey:
    Return Journey

Roster:
    Register

Row House:
    Terraced House

Rutabaga:
    Swede

Run ('Jane, you have a run in your pantyhose'):
    Ladder
('Jane, you have a ladder in your tights')

- S-

S.A.S.E.:
    S.A.E (Stamped Addressed Envelope)

Sales Tax:
    VAT (Value Added Tax). 
(And extremely high to boot, 17.5%! But... the price you see is the price you pay as the VAT is added into the pricetag - Why can't the Americans do this and make life easier? Having to mentally add 5.25% in one state and 7.35% in another state is annoying to say the least)

Santa Claus:
    Father Christmas, Santa Claus

Sand Box (Children's):
   Sand Pit

Sausages:
    Sausages, Bangers
("What's for tea tonight Maggie?" "Banger's and Mash, with a few frozen peas & carrots John." "Ooh that sounds lovely Maggie, I can just taste it now!")

Savings Bank:
    Building Society

Scallions:
    Spring Onions

Schedule:
    Time-table

School Principal:
    Headmaster or Headmistress

Second Floor (of a building):
    First Floor (Continued up one different)

Secretary of State:
    Foreign Secretary

Secretary of the Treasury:
    Chancellor of the Exchequer

Sedan car:
    Saloon 
('Jan has a nice new Volvo saloon')

Sex ('getting laid'):
    'Shag,' 'Nookie'
(Kathy to Nigel: 'Fancy a shag when we get home?')
(younger persons slang - ever seen 'Austin Powers'?)
*Also: "Roger" - an out-of-date older person's slang for the act.

Semi-Tractor Trailer, '18-Wheeler':
    Juggernaut, Articulated Lorry

Senior Citizen:
    OAP (Old Age Pensioner) or just 'Pensioner'

Shaving Cream:
    Shaving Foam

Sherbert:
    Sorbet

Shopping Cart:
    Shopping Trolley

"Shot and killed" ("The gunman was shot and killed by the SWAT team"):
    "Shot Dead"
("The gunman was shot dead by armed police")

Shrimp:
    Prawn

Sharp: (Sharply dressed)
    Smart
("Alex, you'll have to dress up and look smart for that interview tomorrow")

Shocked:
    Shocked, 'Gob-Smacked'
("I was gob-smacked when Ian told me he wanted a divorce")

Shower (baby shower):
    Unheard of, not practiced

Sick, Ill:
    Poorly  
('Katy's not going to work this morning because she's feeling poorly')

Sidewalk:
    Pavement

Ski Mask:
    Balaclava

Six-Pack (canned alcoholic beverages):
    Four-Pack
(Every type of alcoholic beverage in England is sold in multiples of four rather than six.)

Slaughterhouse:
    Abattoir

Sled:
    Sledge

Sleep-In, to:
    Lie-In  
('Nigel is having a lie-in this morning')

Slice (of bacon):
    Rasher

Slingshot:
    Catapult

SlowPoke:
    SlowCoach
"Hurry up you slowcoach!!"

Snowmobile:
    'Skidoo'
"Hey Ian, I'm going on a skidooing holiday in Norway!!"

Snow Peas:
    Mange Tout

Spank:
    Smack  
('Mummy, daddy smacked my bottom!')

Sprite or 7-Up:
    Lemonade !

Soccer:
    Football

Social Security Number:
   National Insurance Number

Specialist Doctor:
    Consultant  
('I'll make you an appointment to see the consultant gynecologist Mrs. Burton')

Spelunking:
    Caving, Potholing

The States:
    America.
("We're going to America for our holidays this year")
(Britons, and all Europeans for that matter, refer to the USA affectionately as "America.")

Station Wagon:
    Estate Car

Stay ('How long are you staying John?'):
    Stop
('How long are you stopping John?').
Stop is slang and of course Stay is used when people speak correctly.

Steal, Shoplifting (minor cases):
    Nick, Pinch 
('Someone pinched my hat from the pub')

Store:
    Shop

Stovetop, Oventop:
    Hob

Stovetop, Oventop:
    Hob

Stroller (baby):
    Pushchair

Stupid:
    Daft, Thick
(Marge to Madge: "That lady at the shop, you know - the one at the till,  she was thick as a brick!")

Sub-Division (e.g., a set of new houses):
    Estate
(yet another contradictory use of this word)

Substitute Teacher:
    Supply Teacher (!)

Subway:
    Underground, 'The Tube'

Sucker, Lollipop:
    Lollipop

Suspenders:
    Braces

SUV:
    4x4, Off-Roader

Sweater:
    Jumper, Cardigan

Swimming Suit, Bathing Suit:
    Swimming Costume (!)